2291093 has 6 divisors (see below), whose sum is σ = 2665206. Its totient is φ = 1963752.

The previous prime is 2291063. The next prime is 2291119. The reversal of 2291093 is 3901922.

It can be written as a sum of positive squares in only one way, i.e., 2244004 + 47089 = 1498^2 + 217^2 .

It is not a de Polignac number, because 2291093 - 2¹⁰ = 2290069 is a prime.

It is a super-3 number, since 3×2291093³ = 36078577837333144071, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23330 + ... + 23427.

It is an arithmetic number, because the mean of its divisors is an integer number (444201).

2^2291093 is an apocalyptic number.

It is an amenable number.

2291093 is a deficient number, since it is larger than the sum of its proper divisors (374113).

2291093 is an equidigital number, since it uses as much as digits as its factorization.

2291093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46771 (or 46764 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2291093 is about 1513.6356893255. The cubic root of 2291093 is about 131.8299961738.

The spelling of 2291093 in words is "two million, two hundred ninety-one thousand, ninety-three".